In October 2015, the company acquired Pinon Gathering Company, owner of 370 miles of gathering lines.[8]

In November 2015, the company acquired 136,000 net acres in the
Niobrara Formation of
Colorado, after acquiring the assets of EE3, LLC, for $190 million in cash.[9]

On January 6, 2016, the NYSE delists the company as it hit a share value of 15 cents.[4]

On January 21, 2016, the company settled a dispute with
Occidental Petroleum over a 30-year
carbon dioxide gas treatment agreement. To exit the agreement, the company transferred all of the exploration and production
midstream assets in the Pinon Field to Occidental Petroleum along with $11 million in cash.[10]

On May 16, 2016, the company filed for
bankruptcy, citing a high debt load and low commodity prices.[11]

On October 4, 2016, the company emerged from bankruptcy reorganization, reducing debt by $3.7 billion. NYSE relists the company under the "SD" symbol.[11]

On November 15, 2017, the company announced it would buy rival Bonanza Creek for $746 Million. [12]

On December 28, 2017, the company announced that they would not continue with the purchase of Bonanza Creek, as investors, led by
Carl Icahn, had protested the acquisition. SandRidge agreed to reimburse Bonanza Creek $3.7 million for transaction-related expenses.[13]

In February 2018, Midstates Petroleum Inc. disclosed an offer to take over Sandridge, which was rejected by the board.[14]

On February 8, 2018, the company announced that CEO James Bennett was fired without cause, and would be exiting with a severance package valued at $26.5 million. The company also announced that CFO Julian Bott would leave after the firm's 2017 annual report is filed.[15][16]

Environmental impact

Earthquakes, due to induced seismicity produced by injected wastes, had also substantially reduced in frequency and intensity, due to a
Kansas Corporation Commission order mandating cutbacks in injection well volumes and pressures. SandRidge, which along with
Chesapeake Energy was one of the two major producers in Southcentral Kansas, appealed the order.[17][18]

Operations

In in first quarter of 2018, the company produced 35.6 thousand
barrels of oil equivalent (218,000 GJ) per day.[19] SandRidge owns oil properties in the Mid-Continent, which accounts for 93% of production. It also owns properties in the
Permian Basin,
West Texas and in the Niobrara Formation of Colorado.[1]